Somebody on this forum recently proposed an experiment to see whether electrostatic charges moving in cars would generate magnetic fields. And whether someone riding in a car would measure a magnetic field while driving past an electrostatic charge.

This inspired me to wonder whether a nonmagnetic metal (such as silver) could be used to make a dynamo powered by the centrifugal force. The idea would be to have a rotating sphere or disk with one sliding contact on the equator and another sliding contact near the axis of rotation. If the crank were turned, an electromotive force should be generated, though perhaps a very tiny one.

Perhaps the idea of cars could be amended by using charged bullets, which could reach much higher speeds than cars and which would have better insulation during their flight than something sitting in a car. Especially if they could be fired through a vacuum. The charge might even be used to accelerate the bullet in the first place; i.e. it could be fired from an charged metal gun.

So, here are two ideas for experiments, though perhaps they need refinement to become feasible.